2020 Silverado HD & Sierra HD Troubleshooting

148 topics in this forum

1. Dead battery...2020 L5P

   By Revspan, June 1
   • 10 replies
   • 624 views
   • 
   • Stand By
   • Yesterday at 02:50 PM

3. Infotainment Audio Issues

   By kf9yr, May 8
   • 10 replies
   • 555 views
   • 
   • jaybauman
   • Thursday at 11:24 PM

4. 2020 GMC AT4 - Won't start, won't even attempt to turn over 1 2

   By CO 2020 GMC AT4, February 20
   • 17 replies
   • 1,934 views
   • 
   • iambill
   • Thursday at 06:29 PM

5. Pro Trailering App Pi$$ing Me Off

   By Tomato, Wednesday at 01:41 AM
   • 3 replies
   • 189 views
   • 
   • cNate
   • Thursday at 01:53 PM

6. Random center console shutdowns and service messages

   By JJM05, June 2
   • 3 replies
   • 347 views
   • 
   • airwolf912
   • Wednesday at 11:34 PM

7. Trailer camera issues 1 2 3 4 6

   By In2racn, November 5, 2019
   • 82 replies
   • 4,114 views
   • 
   • jaybauman
   • Wednesday at 01:22 PM

8. Alignment Issues Pulls to the Right

   By Lightenup, April 1
   • 10 replies
   • 667 views
   • 
   • MesaRat
   • Sunday at 06:42 PM

9. Infotainment Screen Black When Using Remote Start

   By smiles, February 12   

   • infotainment
   • black
   • (and 3 more)

     Tagged with:

     • infotainment
     • black
     • screen
     • remote
     • start
   • 11 replies
   • 919 views
   • 
   • Terry d Turner
   • July 4

10. 2020 2500HD Transmission issues 1 2

    By gpraceworks, November 16, 2019
    • 27 replies
    • 5,298 views
    • 
    • gpraceworks
    • July 3

11. Navigation Update

    By HackaNi, July 2
    • 1 reply
    • 152 views
    • 
    • LSPowered65
    • July 2

12. key fob transmitter faulty?

    By FirstAscent, March 24
    • 14 replies
    • 717 views
    • 
    • Jtaylo2825
    • July 1

13. Headlight adjustment 2020 GMC 2500hd AT4

    By Lance59, February 2   

    • headlamps
    • headlighs
    • 7 replies
    • 555 views
    • 
    • Dunn
    • July 1

14. Trailering App mileage issue

    By Randy Linton, June 30
    • 1 reply
    • 168 views
    • 
    • Tomato
    • July 1

15. 2020 2500HD Duramax crackling on idle

    By Newduramaxh*ar, June 29
    • 3 replies
    • 263 views
    • 
    • Tomato
    • June 30

16. Engine knock a 500 miles 1 2 3 4 8

    By bass mechanic, October 19, 2019
    • 108 replies
    • 14,529 views
    • 
    • Jrscrib
    • June 29

17. Wheels

    By Cmillerjr, June 26
    • 4 replies
    • 276 views
    • 
    • Stand By
    • June 29

18. grease fittings 1 2

    By Bigbucks10, March 2
    • 19 replies
    • 1,529 views
    • 
    • BB&Chiveon
    • June 28

19. Service Steering Column Lock 1 2

    By Tville, October 2, 2019   

    • 2020hd
    • l5p duramax
    • (and 1 more)

      Tagged with:

      • 2020hd
      • l5p duramax
      • denali HD
    • 17 replies
    • 2,694 views
    • 
    • Vic Vieira
    • June 28

20. 2020 2500 HD Sierra No Audio!!!

    By H.B. Shannon, June 14
    • 7 replies
    • 428 views
    • 
    • LSPowered65
    • June 28

21. Side view camera

    By SlimB, June 26
    • 6 replies
    • 340 views
    • 
    • mkeddie
    • June 26

22. Trailer Tire TPMS System issues

    By Mbower2020, May 19
    • 10 replies
    • 626 views
    • 
    • DJ Stopenhagen
    • June 26

23. Full lock at turn noise

    By GMdude2020, June 25
    • 0 replies
    • 130 views
    • 
    • GMdude2020
    • June 25

24. active aero shutters 1 2

    By H1ghlndr, June 23
    • 24 replies
    • 691 views
    • 
    • Tomato
    • June 25

25. Abs pump noise

    By Rick o, June 25
    • 0 replies
    • 93 views
    • 
    • Rick o
    • June 25

26. Passenger Window Not Working

    By bja37, June 11
    • 3 replies
    • 240 views
    • 
    • ickyoldman
    • June 23